Apparatus to produce steam



FIG. 1 is a side view of an apparatus to produce steam showing my new design;

FIG. 2 is a bottom view thereof;

FIG. 3 is a side view of the opposite side of FIG. 1;

FIG. 4 is a top view thereof;

FIG. 5 is a front view thereof; and,

FIG. 6 is a rear view thereof. 

CLAIM The ornamental design for an apparatus to produce steam, as shown and described. 